Vacuum water pump



FIG. 1 is a perspective view of a vacuum water pump showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a side elevational view;

FIG. 5 is an end elevational view; and

FIG. 6 is an end elevational view of the side opposite that of FIG. 5. 

The ornamental design for a vacuum water pump, as shown and described. 